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/* Machine specific code for the Acer n30 PDA.
*
* Copyright (c) 2003-2005 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
* Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
*
* There is a wiki with more information about the n30 port at
* http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/gpio_keys.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/timer.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <asm/arch/leds-gpio.h>
#include <asm/arch/regs-gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
#include <asm/plat-s3c/iic.h>
#include <asm/plat-s3c/regs-serial.h>
#include <asm/plat-s3c24xx/clock.h>
#include <asm/plat-s3c24xx/cpu.h>
#include <asm/plat-s3c24xx/devs.h>
#include <asm/plat-s3c24xx/s3c2410.h>
#include <asm/plat-s3c24xx/udc.h>
static struct map_desc n30_iodesc[] __initdata = {
/* nothing here yet */
};
static struct s3c2410_uartcfg n30_uartcfgs[] = {
/* Normal serial port */
[0] = {
.hwport = 0,
.flags = 0,
.ucon = 0x2c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
/* IR port */
[1] = {
.hwport = 1,
.flags = 0,
.uart_flags = UPF_CONS_FLOW,
.ucon = 0x2c5,
.ulcon = 0x43,
.ufcon = 0x51,
},
/* The BlueTooth controller is connected to port 2 */
[2] = {
.hwport = 2,
.flags = 0,
.ucon = 0x2c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
};
static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
switch (cmd)
{
case S3C2410_UDC_P_ENABLE :
s3c2410_gpio_setpin(S3C2410_GPB3, 1);
break;
case S3C2410_UDC_P_DISABLE :
s3c2410_gpio_setpin(S3C2410_GPB3, 0);
break;
case S3C2410_UDC_P_RESET :
break;
default:
break;
}
}
static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
.udc_command = n30_udc_pullup,
.vbus_pin = S3C2410_GPG1,
.vbus_pin_inverted = 0,
};
static struct gpio_keys_button n30_buttons[] = {
{
.gpio = S3C2410_GPF0,
.code = KEY_POWER,
.desc = "Power",
.active_low = 0,
},
{
.gpio = S3C2410_GPG9,
.code = KEY_UP,
.desc = "Thumbwheel Up",
.active_low = 0,
},
{
.gpio = S3C2410_GPG8,
.code = KEY_DOWN,
.desc = "Thumbwheel Down",
.active_low = 0,
},
{
.gpio = S3C2410_GPG7,
.code = KEY_ENTER,
.desc = "Thumbwheel Press",
.active_low = 0,
},
{
.gpio = S3C2410_GPF7,
.code = KEY_HOMEPAGE,
.desc = "Home",
.active_low = 0,
},
{
.gpio = S3C2410_GPF6,
.code = KEY_CALENDAR,
.desc = "Calendar",
.active_low = 0,
},
{
.gpio = S3C2410_GPF5,
.code = KEY_ADDRESSBOOK,
.desc = "Contacts",
.active_low = 0,
},
{
.gpio = S3C2410_GPF4,
.code = KEY_MAIL,
.desc = "Mail",
.active_low = 0,
},
};
static struct gpio_keys_platform_data n30_button_data = {
.buttons = n30_buttons,
.nbuttons = ARRAY_SIZE(n30_buttons),
};
static struct platform_device n30_button_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &n30_button_data,
}
};
/* This is the bluetooth LED on the device. */
static struct s3c24xx_led_platdata n30_blue_led_pdata = {
.name = "blue_led",
.gpio = S3C2410_GPG6,
.def_trigger = "",
};
/* This LED is driven by the battery microcontroller, and is blinking
* red, blinking green or solid green when the battery is low,
* charging or full respectively. By driving GPD9 low, it's possible
* to force the LED to blink red, so call that warning LED. */
static struct s3c24xx_led_platdata n30_warning_led_pdata = {
.name = "warning_led",
.flags = S3C24XX_LEDF_ACTLOW,
.gpio = S3C2410_GPD9,
.def_trigger = "",
};
static struct platform_device n30_blue_led = {
.name = "s3c24xx_led",
.id = 1,
.dev = {
.platform_data = &n30_blue_led_pdata,
},
};
static struct platform_device n30_warning_led = {
.name = "s3c24xx_led",
.id = 2,
.dev = {
.platform_data = &n30_warning_led_pdata,
},
};
static struct platform_device *n30_devices[] __initdata = {
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c,
&s3c_device_iis,
&s3c_device_usb,
&s3c_device_usbgadget,
&n30_button_device,
&n30_blue_led,
&n30_warning_led,
};
static struct s3c2410_platform_i2c n30_i2ccfg = {
.flags = 0,
.slave_addr = 0x10,
.bus_freq = 10*1000,
.max_freq = 10*1000,
};
static void __init n30_map_io(void)
{
s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
s3c24xx_init_clocks(0);
s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
}
static void __init n30_init_irq(void)
{
s3c24xx_init_irq();
}
/* GPB3 is the line that controls the pull-up for the USB D+ line */
static void __init n30_init(void)
{
s3c_device_i2c.dev.platform_data = &n30_i2ccfg;
s3c24xx_udc_set_platdata(&n30_udc_cfg);
/* Turn off suspend on both USB ports, and switch the
* selectable USB port to USB device mode. */
s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
S3C2410_MISCCR_USBSUSPND0 |
S3C2410_MISCCR_USBSUSPND1, 0x0);
platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
}
MACHINE_START(N30, "Acer-N30")
/* Maintainer: Christer Weinigel <christer@weinigel.se>,
Ben Dooks <ben-linux@fluff.org>
*/
.phys_io = S3C2410_PA_UART,
.io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
.boot_params = S3C2410_SDRAM_PA + 0x100,
.timer = &s3c24xx_timer,
.init_machine = n30_init,
.init_irq = n30_init_irq,
.map_io = n30_map_io,
MACHINE_END
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